A smart pet collar based on SMA

Abstract

This invention provides a smart pet collar based on SMA (Spirit Matrix Association), belonging to the field of smart wearable technology. When monitoring a pet's pulse, temperature, etc., is required, and the pressure sensor reading is below a set value, the main control chip triggers the SMA action module to tighten the collar base. Conversely, when pulse and temperature monitoring is not needed, or when the pressure sensor reading is too high, the main control chip triggers the SMA action module to loosen the collar base. This achieves adaptive fit between the smart pet collar and the pet's neck, ensuring accurate data monitoring by the sensor module without affecting the pet's healthy growth. Furthermore, the sensor module and other modules of the smart pet collar are optimized and improved to enhance the accuracy of the monitored data and the overall performance of the application.

Description

Technical Field

[0001] This invention relates to the field of smart wearable technology, and more specifically to a smart pet collar based on SMA. Background Technology

[0002] Smart pet collars are auxiliary tools used to monitor the basic physiological indicators of pets, providing important reference data reflecting their condition. Current smart pet collars utilize various sensor modules to accurately monitor these indicators. However, these collars often fail to adapt to the pet's neck. If the collar fits too loosely, some sensor modules may not conform properly, leading to inaccurate or erroneous data. Conversely, a consistently tight fit is detrimental to the pet's health. Furthermore, certain sensor modules and other components in current smart pet collars require further improvement to enhance data accuracy and overall performance. Therefore, improvements to existing smart pet collars are necessary. Summary of the Invention

[0003] This invention provides a smart pet collar based on SMA to solve the technical problem that "current smart pet collars fail to adapt to the pet's neck, resulting in incorrect or inaccurate data monitored by the sensor module".

[0004] The technical solution of the present invention is as follows:

[0005] A smart pet collar based on SMA includes:

[0006] Collar base, used to be fitted around the pet's neck;

[0007] A pressure sensor, located on the inside of the collar base, is used to monitor the pressure between the collar base and the pet's neck;

[0008] The SMA motion module is connected to the two opposite ends of the collar base. The SMA motion module moves in the forward or reverse direction to tighten or loosen the collar base.

[0009] The main control chip is located on the collar base. The main control chip is connected to the pressure sensor and the SMA motion module. The main control chip triggers the SMA motion module to move forward or backward based on the pressure data uploaded by the pressure sensor.

[0010] Preferably, the SMA actuation module includes a slot, a latch, an SMA spring, an SMA wire, a first heating unit, and a second heating unit;

[0011] The slot is connected to one end of the collar base, and the latch is connected to the other end of the collar base. The latch engages with the slot, and under the action of external force, the latch can reciprocate relative to the slot.

[0012] One end of the SMA spring is connected to the latch, and the other end of the SMA spring is connected to one end of the collar base;

[0013] The SMA wire is arranged at the edge of the slot opening;

[0014] The first heating unit is used to heat the SMA spring;

[0015] The second heating unit is used to heat the SMA filament;

[0016] The main control chip is connected to the first heating unit and the second heating unit respectively, and is used to trigger the operation of the first heating unit or the second heating unit.

[0017] Preferably, when the SMA spring is heated, the SMA spring tightens, causing the latch to move toward the slot. After the latch moves to a set position relative to the slot, the slot locks the latch.

[0018] When the SMA wire is heated, it bends away from the slot opening, causing the slot opening to bend outward. Under the restoring force of the SMA spring, the latch moves away from the slot.

[0019] Preferably, the outer side of the latch is provided with a first ratchet structure, and the inner side of the slot is provided with a second ratchet structure, wherein the first ratchet structure and the second ratchet structure cooperate with each other.

[0020] Preferably, the pressure sensor includes a pressure monitoring electrode and a pressure signal acquisition circuit connected to the pressure monitoring electrode. The pressure signal acquisition circuit is connected to the main control chip. The pressure monitoring electrode is arranged along the extension direction of the collar base. The area formed by the winding of the pressure monitoring electrode includes a rectangular area in the middle and curved areas at both ends.

[0021] Preferably, the pressure monitoring electrode is connected to the pressure signal acquisition circuit via a flexible PCB.

[0022] Preferably, it also includes a temperature sensor, which includes a temperature monitoring electrode located inside the collar base and a temperature signal acquisition circuit connected to the temperature monitoring electrode. The temperature signal acquisition circuit is connected to the main control chip. The temperature monitoring electrode includes a first main electrode and a second main electrode. A plurality of first branch electrodes are arranged at intervals on the first main electrode, and a plurality of second branch electrodes are arranged at intervals on the second main electrode. The first branch electrodes and the second branch electrodes are arranged alternately.

[0023] Preferably, it also includes a positioning module for monitoring the location of the SMA-based smart pet collar, the positioning module being signal-connected to the main control chip.

[0024] Preferably, it also includes an electrical stimulator, which includes an electrical stimulation cathode and an electrical stimulation anode located inside the collar base for stimulating the pet's neck when energized, and the electrical stimulator is signal-connected to the main control chip.

[0025] Preferably, it also includes a wireless communication module for wireless communication with the smart terminal, the wireless communication module being signal-connected to the main control chip.

[0026] Beneficial technical effects of the present invention:

[0027] The SMA-based smart pet collar of this invention, when monitoring the pet's pulse, temperature, etc., requires intervention, triggers the SMA action module in a forward motion when the pressure sensor reading is below a set value, causing the collar base to tighten. Conversely, when monitoring is not needed, or when the pressure sensor reading is too high, the main control chip triggers the SMA action module in a reverse motion, causing the collar base to relax. This achieves adaptive fit between the smart pet collar and the pet's neck, ensuring accurate data monitoring by the sensor module without affecting the pet's healthy growth. Furthermore, the sensor module and other modules of the smart pet collar are optimized and improved to enhance the accuracy of the monitoring data and the overall performance of the application. Attached Figure Description

[0028] Figure 1 This is an exploded view of the overall structure of the SMA-based smart pet collar of this invention;

[0029] Figure 2 This is an exploded view of the main module of the SMA-based smart pet collar of the present invention;

[0030] Figure 3 This is a schematic diagram illustrating the connection principle of the main module of the SMA-based smart pet collar of the present invention.

[0031] Figure 4 This is a schematic diagram of the SMA motion module of the SMA-based smart pet collar of the present invention;

[0032] Figure 5 This is a diagram showing the arrangement of pressure monitoring electrodes in the SMA-based smart pet collar of the present invention.

[0033] Figure 6 This is a diagram showing the arrangement of temperature monitoring electrodes in the SMA-based smart pet collar of the present invention.

[0034] Figure 7This is the main system architecture diagram of the SMA-based smart pet collar of this invention.

[0035] Figure label:

[0036] 1. Collar base; 2. Pressure sensor; 21. Pressure monitoring electrode; 211. Rectangular area; 212. Bending area; 3. SMA motion module; 31. Slot; 311. Second ratchet structure; 32. Tongue; 321. First ratchet structure; 33. SMA spring; 34. SMA wire; 4. Temperature sensor; 41. First main electrode; 411. First branch electrode; 42. Second main electrode; 421. Second branch electrode; 51. Positioning module; 521. Electrostimulation cathode; 522. Electrostimulation anode; 53. Wireless communication module; 54. Flexible LED display screen; 55. Accelerometer sensor module; 56. Battery module; 57. Flexible solar panel; 58. USB interface; 6. Main control chip. Detailed Implementation

[0037] To make the objectives, technical solutions, and beneficial effects of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and the accompanying drawings. Certain embodiments of the invention will be described more fully below with reference to the accompanying drawings, and some, but not all, of these embodiments will be shown. In fact, various embodiments of the invention can be implemented in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided to enable the invention to meet applicable legal requirements.

[0038] In the description of this invention, it should be noted that the terms "inner," "outer," "upper," "lower," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] like Figures 1 to 7 As shown, a smart pet collar based on SMA includes a collar base 1, a pressure sensor 2, an SMA motion module 3, a temperature sensor 4, a positioning module 51, an electrical stimulator, a wireless communication module 53, an LED flexible display screen 54, an acceleration sensor module 55, a battery module 56, a flexible solar panel 57, and a main control chip 6, etc.

[0040] The collar base 1 has a ring-shaped structure, and its outer shell is a flexible encapsulation, which is used to fit around the pet's neck.

[0041] Pressure sensor 2 is located inside the collar base 1 and is used to monitor the pressure between the collar base 1 and the pet's neck. Additionally, pressure sensor 2 is also used to monitor the pet's pulse.

[0042] SMA motion modules 3 are connected to the opposite ends of the collar base 1. The SMA motion modules 3 move in the forward or reverse direction to tighten or loosen the collar base 1. SMA is short for shape memory alloy.

[0043] The main control chip 6 is set on the collar base 1. The main control chip 6 is connected to the pressure sensor 2 and the SMA action module 3 respectively. The main control chip 6 triggers the SMA action module 3 to move forward or backward according to the pressure data uploaded by the pressure sensor 2.

[0044] The SMA motion module 3 includes a slot 31, a latch 32, an SMA spring 33, an SMA wire 34, a first heating unit, and a second heating unit. The slot 31 connects to one end of the collar base 1, and the latch 32 connects to the other end of the collar base 1. The latch 32 engages with the slot 31 and can reciprocate relative to the slot 31 under external force. One end of the SMA spring 33 connects to the latch 32, and the other end connects to one end of the collar base 1. The SMA wire 34 is positioned at the edge of the slot 31. The first heating unit heats the SMA spring 33, and the second heating unit heats the SMA wire 34. The main control chip 6 is connected to the first and second heating units to trigger either the first or second heating unit to operate.

[0045] The outer side of the latch 32 is provided with a first ratchet structure 321, and the inner side of the slot 31 is provided with a second ratchet structure 311. The first ratchet structure 321 and the second ratchet structure 311 cooperate with each other.

[0046] When the SMA spring 33 is heated, the SMA spring 33 tightens, causing the latch 32 to move toward the slot 31. The first ratchet structure 321 moves forward relative to the second ratchet structure 311. After the latch 32 moves to the set position relative to the slot 31, the slot 31 locks the latch 32. Specifically, the second ratchet structure 311 restricts the first ratchet structure 321 from moving backward.

[0047] When the SMA wire 34 is heated, it bends away from the opening of the slot 31, causing the opening of the slot 31 to bend outward. At this time, the second ratchet structure 311 disengages from the first ratchet structure 321. Under the restoring force of the SMA spring 33, the latch 32 moves away from the slot 31 by a set distance. After the latch 32 moves away from the slot 31 by the set distance, it remains inside the slot 31. After the SMA wire 34 cools down, it returns to its original shape, which in turn causes the opening of the slot 31 to return to its original shape, causing the slot 31 to relock the latch 32. Specifically, the second ratchet structure 311 re-restricts the first ratchet structure 321 from moving backward.

[0048] The pressure sensor 2 includes a pressure monitoring electrode 21 and a pressure signal acquisition circuit. The pressure signal acquisition circuit is connected to the pressure monitoring electrode 21 and to the main control chip 6. The pressure data collected by the pressure monitoring electrode 21 is converted into a digital signal by the pressure signal acquisition circuit and uploaded to the main control chip 6. The pressure monitoring electrode 21 is arranged along the extension direction of the collar base 1. The area formed by the winding of the pressure monitoring electrode 21 includes a rectangular area 211 in the middle and curved areas 212 at both ends. The overall shape of the pressure monitoring electrode 21 resembles a playground. The rectangular area 211 of the pressure monitoring electrode 21 elongates its extension length, making it easier to fit the pet's carotid artery and reducing the adjustment work required to align the pressure sensor 2 with the pet's carotid artery when wearing the collar. The pressure monitoring electrode 21 is connected to the pressure signal acquisition circuit via a serpentine flexible PCB, which allows for a certain degree of stretching and reduces the probability of measurement errors caused by the pet's movement.

[0049] It should be noted that, in addition to general pressure monitoring, the pressure sensor 2 in this embodiment is also used for pulse monitoring of pets.

[0050] The temperature sensor 4 includes a temperature monitoring electrode and a temperature signal acquisition circuit located inside the collar base 1. The temperature signal acquisition circuit is connected to the temperature monitoring electrode and to the main control chip 6. The temperature data collected by the temperature monitoring electrode is converted into a digital signal by the temperature signal acquisition circuit and uploaded to the main control chip 6. The temperature monitoring electrode includes a first main electrode 41 and a second main electrode 42. Several first branch electrodes 411 are arranged at equal intervals on the first main electrode 41, and several second branch electrodes 421 are arranged at equal intervals on the second main electrode 42. The first branch electrodes 411 and the second branch electrodes 421 are arranged alternately. This arrangement of the temperature monitoring electrodes in the temperature sensor 4 results in a large contact monitoring area, enabling the measurement of the average temperature of the area, higher measurement accuracy, and avoiding the problem of traditional temperature sensors being greatly affected by environmental interference when collecting data at a single point.

[0051] Pressure sensor 2 and temperature sensor 4 need to fit snugly against the pet's neck for accurate monitoring data. The substrates of pressure sensor 2 and temperature sensor 4 are made of one or more polymers, such as thermoplastic polyurethane, polyolefin elastomer, polystyrene elastomer, polyamide elastomer, silicone rubber, and styrene-terminated copolymer, to make the substrates of pressure sensor 2 and temperature sensor 4 more flexible and allow for a good fit against the pet's neck.

[0052] During monitoring, with the collar base 1 tightened, the base of the pressure sensor 2 and temperature sensor 4 is made softer and fits well against the pet's neck, improving the accuracy of the monitoring data from the pressure sensor 2 and temperature sensor 4.

[0053] The positioning module 51 is specifically a satellite positioning module. The positioning module 51 is connected to the main control chip 6. The positioning module 51 is used to monitor the location of the SMA-based smart pet collar and upload the location information to the main control chip 6.

[0054] The electrical stimulator includes an electrical stimulation cathode 521 and an electrical stimulation anode 522 located inside the collar base 1. The electrical stimulation cathode 521 and electrical stimulation anode 522 are patch-like structures, adhered to the inside of the collar base 1 to achieve a better fit with the pet's neck. The electrical stimulator is used to stimulate the pet's neck when electricity is applied, and the signal of the electrical stimulator is connected to the main control chip 6. When stimulation of the pet's neck is required, the main control chip 6 triggers the electrical stimulator to operate.

[0055] When in use, users can define an electronic fence on a smart terminal and coordinate with the positioning module 51. When the pet tries to leave the electronic fence area, the electrical stimulation anode 522 discharges to stimulate the pet to return.

[0056] The wireless communication module 53 is connected to the main control chip 6 for wireless communication with the smart terminal.

[0057] The wireless communication module 53 includes one or more combinations of a low-power Bluetooth module, a 4G communication module, a 5G communication module, and a WiFi module. The main control chip 6 transmits data collected by the various sensor modules and other modules wirelessly to a smart terminal (such as a PC or mobile phone). It is also equipped with a low-power flexible LED display screen 54, on which the main control chip 6 sends the pet's basic physiological data for display, making it convenient for users to view.

[0058] An acceleration sensor module 55 is installed inside the collar base 1, and the acceleration sensor module 55 is connected to the main control chip 6. The acceleration sensor module 55 monitors the pet's acceleration and angular acceleration data and uploads it to the main control chip 6.

[0059] The battery module 56 is specifically a lithium battery pouch, which is set inside the collar base 1 to supply power to each power module. Two flexible solar panels 57 are set on the outside of the collar base 1, and the flexible solar panels 57 are electrically connected to the battery module 56 to charge the battery module 56.

[0060] A USB interface 58 is provided on the side of the collar base 1. The USB interface 58 is connected to the main control chip 6 for signal transmission, so as to program the main control chip 6. The USB interface 58 is also electrically connected to the battery module 56 for charging.

[0061] The present invention has been described in detail with reference to the accompanying drawings. Based on the above description, those skilled in the art should have a clear understanding of the SMA-based smart pet collar of the present invention. In the SMA-based smart pet collar of the present invention, when it is necessary to monitor the pet's pulse, temperature, etc., if the pressure sensor 2 detects a pressure value lower than a set value, the main control chip 6 triggers the SMA action module 3 to move in a positive direction to tighten the collar base 1; when it is not necessary to monitor the pet's pulse, temperature, etc., or if the pressure sensor 2 detects an excessively high pressure value, the main control chip 6 triggers the SMA action module 3 to move in a reverse direction to relax the collar base 1. This achieves adaptive matching between the smart pet collar and the pet's neck, ensuring the accuracy of the data monitored by the sensor module and not affecting the pet's healthy growth. Furthermore, the sensor module and other modules of the smart pet collar are optimized and improved to enhance the accuracy of the monitored data and the application performance of the smart pet collar.

[0062] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A smart pet collar based on SMA, characterized in that, include: Collar base, used to be fitted around the pet's neck; A pressure sensor, located on the inside of the collar base, is used to monitor the pressure between the collar base and the pet's neck; The SMA motion module is connected to the two opposite ends of the collar base. The SMA motion module moves in the forward or reverse direction to tighten or loosen the collar base. The main control chip is set on the collar base. The main control chip is connected to the pressure sensor and the SMA action module respectively. The main control chip triggers the SMA action module to move forward or backward according to the pressure data uploaded by the pressure sensor. The SMA actuation module includes a slot, a latch, an SMA spring, an SMA wire, a first heating unit, and a second heating unit. The slot is connected to one end of the collar base, and the latch is connected to the other end of the collar base. The latch engages with the slot, and under the action of external force, the latch can reciprocate relative to the slot. One end of the SMA spring is connected to the latch, and the other end of the SMA spring is connected to one end of the collar base; The SMA wire is arranged at the edge of the slot opening; The first heating unit is used to heat the SMA spring; The second heating unit is used to heat the SMA filament; The main control chip is connected to the first heating unit and the second heating unit respectively, and is used to trigger the operation of the first heating unit or the second heating unit. When the SMA spring is heated, the SMA spring tightens, causing the latch to move toward the slot. After the latch moves to the set position relative to the slot, the slot locks the latch. When the SMA wire is heated, it bends away from the slot opening, causing the slot opening to bend outward. Under the restoring force of the SMA spring, the latch moves away from the slot.

2. The SMA-based smart pet collar according to claim 1, characterized in that: The outer side of the latch is provided with a first ratchet structure, and the inner side of the slot is provided with a second ratchet structure, the first ratchet structure and the second ratchet structure cooperating.

3. The SMA-based smart pet collar according to claim 1, characterized in that: The pressure sensor includes a pressure monitoring electrode and a pressure signal acquisition circuit connected to the pressure monitoring electrode. The pressure signal acquisition circuit is connected to the main control chip. The pressure monitoring electrode is arranged along the extension direction of the collar base. The area formed by the winding of the pressure monitoring electrode includes a rectangular area in the middle and curved areas at both ends.

4. The SMA-based smart pet collar according to claim 3, characterized in that: The pressure monitoring electrode is connected to the pressure signal acquisition circuit via a flexible PCB.

5. The SMA-based smart pet collar according to claim 1, characterized in that: It also includes a temperature sensor, which includes a temperature monitoring electrode located inside the collar base and a temperature signal acquisition circuit connected to the temperature monitoring electrode. The temperature signal acquisition circuit is connected to the main control chip. The temperature monitoring electrode includes a first main electrode and a second main electrode. A plurality of first branch electrodes are arranged at intervals on the first main electrode, and a plurality of second branch electrodes are arranged at intervals on the second main electrode. The first branch electrodes and the second branch electrodes are arranged alternately.

6. The SMA-based smart pet collar according to claim 1, characterized in that: It also includes a positioning module for monitoring the location of the SMA-based smart pet collar, and the positioning module is signal-connected to the main control chip.

7. A smart pet collar based on SMA according to claim 6, characterized in that: It also includes an electrical stimulator, which comprises an electrical stimulation cathode and an electrical stimulation anode located inside the collar base, for stimulating the pet's neck when energized, and the electrical stimulator is signal-connected to the main control chip.

8. The SMA-based smart pet collar according to claim 1, characterized in that: It also includes a wireless communication module for wireless communication with the smart terminal, and the wireless communication module is signal-connected to the main control chip.

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